Barren Lands and Barren Bodies In Navajo Nation: Indian Women WARN about Uranium, Genetics, and Sterilization

Founded by Native American women in 1974, Women of All Red Nations (WARN) insisted that the ongoing Indian public health crisis could not be properly understood exclusively within the context of the exploitation and pollution of the physical environment. It required as well an understanding of the larger context of Indian health issues evolving out of past and present cultural and political changes. This article focuses on selected health, threats affecting the Dine, or the People, as Navajo Indians call themselves, living in Dine Bikeyah (Navajo Nation) during the mid to late 20th century. Navajo history is marked by a series of catastrophes befalling the health of its people and lands, and reactions by both the Dine and the federal government. The 20th century Navajo story combines the concurrent tragedies of forced Indian sterilizations with the calamitous health consequences of uranium exploitation that continue into the 21st century. This context must not be ignored when assessing the difficulties involved in establishing a trusting relationship between the Navajo people and outside researchers and health care providers

Time-Shared Execution of Realtime Computer Vision Pipelines by Dynamic Partial Reconfiguration

This paper presents an FPGA runtime framework that demonstrates the feasibility of using dynamic partial reconfiguration (DPR) for time-sharing an FPGA by multiple realtime computer vision pipelines. The presented time-sharing runtime framework manages an FPGA fabric that can be round-robin time-shared by different pipelines at the time scale of individual frames. In this new use-case, the challenge is to achieve useful performance despite high reconfiguration time. The paper describes the basic runtime support as well as four optimizations necessary to achieve realtime performance given the limitations of DPR on today's FPGAs. The paper provides a characterization of a working runtime framework prototype on a Xilinx ZC706 development board. The paper also reports the performance of realtime computer vision pipelines when time-shared

Symmetric colorings of polypolyhedra

Polypolyhedra (after R. Lang) are compounds of edge-transitive 1-skeleta. There are 54 topologically different polypolyhedra, and each has icosidodecahedral, cuboctahedral, or tetrahedral symmetry, all are realizable as modular origami models with one module per skeleton edge. Consider a coloring in which each edge of a given component receives a different color, and where the coloring (up to global color permutation) is invariant under the polypolyhedron's symmetry group. On the Five Intersecting Tetrahedra, the edges of each color form visual bands on the model, and correspond to matchings on the dodecahedron graph. We count the number of such colorings and give three proofs. For each of the non-polygon-component polypolyhedra, there is a corresponding matching coloring, and we count the number of these matching colorings. For some of the non-polygon-component polypolyhedra, there is a corresponding visual-band coloring, and we count the number of these band colorings

Culturally Appropriate Assessment of Functional Impairment in Diverse Children: Validation of the ADHD-FX Scale With an At-Risk Community Sample

Objective: In an effort to reduce disparities in ADHD diagnoses and treatment across cultures, the current study sought to establish initial psychometric and cultural properties of the ADHD-FX: a culturally sensitive assessment measure of functional impairment related to ADHD for diverse families. Method: Fifty-four Latino parents (44 mothers and 10 fathers) of school-aged children completed the ADHD-FX, as well as several other measures assessing child behavior and parent acculturation. Results: The ADHD-FX demonstrated adequate reliability (as demonstrated by internal consistency and test–retest reliability), psychometric construct validity (as demonstrated by associations with theoretically related measures), and cultural validity (as demonstrated by or lack of associations with acculturation measures). Conclusion: Initial psychometric and cultural properties suggest that the ADHD-FX is a reliable, valid, and culturally appropriate measure to assess functional impairment related to ADHD (i.e., difficulties with academic achievement, social competence, and familial relationships) in an at-risk, school-aged population

The Papal Encyclical \u3cem\u3eLaudato Si’\u3c/em\u3e: A Focus on Sustainability Attentive to the Poor

This article seeks to reflect upon Laudato Si’, the papal encyclical on ecology and sustainable development, and uncover its apparent philosophical and practical approach to the environment. It begins with a discussion of paradigms of thought that outline the new ecological paradigm (NEP) suggested in the ecological literature, thereby helping to situate the ecosophy of Laudato Si’ within current thought. As we will show, Laudato Si’ differs from the NEP by linking the poor to our approach to sustainability and in its consideration of integral ecology. Specific principles for sustainability in business are then identified and strategic approaches are recommended, as are guidelines for an eco-justice approach to business and business education

The relationship between teachers' educational philosophies and the ability-achievement growth of their elementary school classes.

Thesis (Ed.M.)--Boston Universit

Temperature dependence of exciton recombination in semiconducting single-wall carbon nanotubes

We study the excitonic recombination dynamics in an ensemble of (9,4) semiconducting single-wall carbon nanotubes by high sensitivity time-resolved photo-luminescence experiments. Measurements from cryogenic to room temperature allow us to identify two main contributions to the recombination dynamics. The initial fast decay is temperature independent and is attributed to the presence of small residual bundles that create external non-radiative relaxation channels. The slow component shows a strong temperature dependence and is dominated by non-radiative processes down to 40 K. We propose a quantitative phenomenological modeling of the variations of the integrated photoluminescence intensity over the whole temperature range. We show that the luminescence properties of carbon nanotubes at room temperature are not affected by the dark/bright excitonic state coupling